A converterless, multiple-ratio transmission and shift control method wherein smoothness of power-on upshifts and downshifts and power-off upshifts and downshifts is achieved by closed loop control of slip speed and friction element actuating pressure for an oncoming friction element, the data used during...http://www.google.fr/patents/US20060100060?utm_source=gb-gplus-shareBrevet US20060100060 - CONVERTERLESS TRANSMISSION SHIFT CONTROL SYSTEM
Numéro de demande: 10/904,352 Numéro de publication: US 2006/0100060 A1 Date de dépôt: 5 nov. 2004 Brevet délivré: US7326149 ( Date de délivrance 5 févr. 2008)
